// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <string.h>

#include "net/http/des.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace net {

// This test vector comes from the NSS FIPS power-up self-test.
TEST(DESTest, KnownAnswerTest1)
{
    // DES known key (56-bits).
    static const uint8_t des_known_key[] = "ANSI DES";

    // DES known plaintext (64-bits).
    static const uint8_t des_ecb_known_plaintext[] = "Netscape";

    // DES known ciphertext (64-bits).
    static const uint8_t des_ecb_known_ciphertext[] = { 0x26, 0x14, 0xe9, 0xc3,
        0x28, 0x80, 0x50, 0xb0 };

    uint8_t ciphertext[8];
    memset(ciphertext, 0xaf, sizeof(ciphertext));

    DESEncrypt(des_known_key, des_ecb_known_plaintext, ciphertext);
    EXPECT_EQ(0, memcmp(ciphertext, des_ecb_known_ciphertext, 8));
}

// This test vector comes from NIST Special Publication 800-17, Modes of
// Operation Validation System (MOVS): Requirements and Procedures, Appendix
// A, page 124.
TEST(DESTest, KnownAnswerTest2)
{
    static const uint8_t key[] = { 0x10, 0x31, 0x6e, 0x02, 0x8c, 0x8f, 0x3b, 0x4a };
    static const uint8_t plaintext[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
    static const uint8_t known_ciphertext[] = { 0x82, 0xdc, 0xba, 0xfb,
        0xde, 0xab, 0x66, 0x02 };
    uint8_t ciphertext[8];
    memset(ciphertext, 0xaf, sizeof(ciphertext));

    DESEncrypt(key, plaintext, ciphertext);
    EXPECT_EQ(0, memcmp(ciphertext, known_ciphertext, 8));
}

} // namespace net
